<template>
  <div>看控制台</div>
</template>

<script>
export default {
  created () {
    function copy (target) {
      // ...在这里补充代码
      return [...target]
    }
    const arr = [1, 2, 3, 4, 5]
    const brr = copy(arr)
    arr.push(100)
    console.log(brr) // [1, 2, 3, 4, 5]
  }
}

</script>

<style>
</style>
